🗑️ PDF 删除页面Delete PDF Pages
删除 PDF 中不需要的页面（空白页、广告页、多余的附录）：输入页码或点击缩略图标记删除，其余页面原样保留并另存为新文件，本地处理不上传。Remove unwanted pages — blank pages, ads, extra appendices — by typing page numbers or clicking thumbnails; the remaining pages are kept untouched in a new file. Local processing, no upload.
使用说明与常见问题How-to & FAQ
「PDF 删除页面」是什么？What is the Delete PDF Pages tool?
删除 PDF 中不需要的页面（空白页、广告页、多余的附录）：输入页码或点击缩略图标记删除，其余页面原样保留并另存为新文件，本地处理不上传。Remove unwanted pages — blank pages, ads, extra appendices — by typing page numbers or clicking thumbnails; the remaining pages are kept untouched in a new file. Local processing, no upload.
如何使用「PDF 删除页面」？How do I use the Delete PDF Pages tool?
在「PDF 删除页面」中，按需设置「要删除的页」等选项，然后点击「删除并下载」按钮即可。支持拖放文件。加密的 PDF 选好后会先出现「打开密码」栏和「打开」按钮，输入密码点「打开」后再继续。In the Delete PDF Pages: Set "Pages to delete", then click "Delete & download". Drag-and-drop files is supported. For an encrypted PDF, a Password field and an Open button appear after you choose it — enter the password and click Open first.
页码范围怎么写？How do I write page ranges?
用逗号分隔，例如 1-3,5,8- 表示第 1 到 3 页、第 5 页和第 8 页到最后一页；-3 表示前 3 页。也可以直接点击下方的页面缩略图来选择。Separate with commas: 1-3,5,8- means pages 1 to 3, page 5, and page 8 to the end; -3 means the first three pages. You can also click the page thumbnails below.
删除后能恢复吗？Can I undo a deletion?
原文件不会被修改，删除结果保存为新的 PDF 下载；想恢复只需重新使用原文件。Your original file is never modified — the result is downloaded as a new PDF, so just use the original again.
删除页面会影响其余页面的画质吗？Does it affect the remaining pages?
不会，其余页面原样保留，不重新压缩；文件体积通常会随页面减少而变小。No, the remaining pages are kept as-is without re-compression; the file usually gets smaller.
加密的 PDF 可以处理吗？Can it handle password-protected PDFs?
可以。如果 PDF 需要打开密码，会提示你输入；只有权限限制（无打开密码）的文件会自动打开。输出文件不再带密码，如需加密请使用“PDF 加密”工具。Yes. If the PDF needs an open password you'll be asked for it; files with only permission restrictions open automatically. The output is not password-protected — use the Protect PDF tool if needed.
文件会上传到服务器吗？Are my files uploaded?
不会。PDF 在你的浏览器里用 pdf-lib / pdf.js 处理，文件不会离开你的设备，关闭页面后不留存任何数据。No. The PDF is processed in your browser with pdf-lib / pdf.js; files never leave your device and nothing is kept after you close the page.
「PDF 删除页面」免费吗？需要注册吗？Is the Delete PDF Pages free? Do I need an account?
「PDF 删除页面」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Delete PDF Pages is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.